Cooler conditions are arriving as Toronto heads into the first official day of fall, with temperatures expected to feel as low as 9°C this afternoon.
Toronto is getting its first real taste of sweater weather just as fall officially begins. Cooler conditions are expected across the city on Wednesday, September 23, with temperatures feeling as chilly as 9°C this afternoon.
The daytime high is expected to reach around 16°C, but that lower wind-chill feel will make the transition from summer noticeable. It is the kind of weather that calls for a light jacket or an extra layer, especially when heading outside for longer stretches.

Fall arrives with a quick change in feel
Summer is officially wrapping up, and Toronto’s weather is already reflecting the seasonal shift. After weeks of warmer conditions, the cooler air offers an early preview of the months ahead.
Fall officially begins on Tuesday, September 22. For Toronto residents still holding on to summer, the forecast is a reminder that sweater weather has arrived sooner than expected.
Are you ready for cooler temperatures, or already wishing summer would come back?
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